Gentoo Archives: gentoo-hardened

From:	PaX Team <pageexec@××××××××.hu>
To:	gentoo-hardened@l.g.o
Subject:	Re: [gentoo-hardened] pthread_create problems on hardened x86
Date:	Wed, 01 Aug 2012 15:02:50
Message-Id:	`50192A67.16842.10F8396@pageexec.freemail.hu`
In Reply to:	Re: [gentoo-hardened] pthread_create problems on hardened x86 by Michael Orlitzky

1	On 1 Aug 2012 at 8:41, Michael Orlitzky wrote:
2
3	> Thanks, here are strace -f logs from both the hardened box (where it
4	> fails) and a vanilla gentoo x86 VM (where it works).
5
6	mmap2(NULL, 307200000, PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS\|MAP_STACK, -1, 0) = -1 ENOMEM (Cannot allocate memory)
7
8	this can fail for several reasons, not enough RAM (depends on how overcommit is set),
9	not enough address space (hardened/PIE and ASLR together change how big the holes in
10	the address space end up, SEGMEXEC halves the address space), etc.

Subject	Author
Re: [gentoo-hardened] pthread_create problems on hardened x86	Michael Orlitzky <michael@××××××××.com>